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Patent # Description
US-4,153,995 Navigation plotter
A navigation plotter for use with a map or chart having depicted thereon a line depicting a desired course and a compass rose. The plotter comprises a protractor...
US-4,151,959 Apparatus for comminuting pulverizable material
An impact pulverizer mounts a rotor concentrically within an octagonal shaped reduction chamber. The rotor has a substantially solid core and generally radially...
US-4,151,687 Device for securing structural panels
Structural panels are assembled and set up to afford a knock-down shelter comprising a roof which spans opposed upright sidewalls. The roof and sidewall panels...
US-4,151,462 Electrical test probe having a spring biased clip with an extendable and retractable tip movable within the clip
A normally retracted tip is extendible intermediate spring biased jaws of an electrical probe and is retained in the extended position by a spring bias and the...
US-4,150,328 Apparatus and method for controlling a machine tool along a circular path
In a control apparatus for a machine tool, an interpolator circuit for determining whether or not one of the axis motors should be inhibited on the next step to...
US-4,149,842 Waste oil burner
A burner for hydrocarbon fuel, such as waste lubricating oil for internal combustion engines and the like, has a fuel line terminating in a discharge nozzle and...
US-4,145,834 Animal trap
An animal trap of the type including an open top vessel suitable for trapping or drowning an animal is disclosed. The animal is attracted to a fixed platform...
US-4,143,859 Cement fence post
A central bar extends along the center of a cement post from the bottom of the post to a point spaced above the top thereof and has a diametric bore formed...
US-4,143,516 Air-water power generator
Flow of gas in opposite directions through vertical conduits is accelerated by evaporation of heated liquid to decrease the density of the gas entering the lower...
US-4,143,281 Vehicle for the handicapped
A vehicle having a body with a door frame and a door assembly, the door assembly including three movable sections, an upper section horizontally slidable along a...
US-4,139,253 Plug retaining device
A retaining device for preventing withdrawal of an electric plug from a wall or extension cord socket responsive to forces exerted on a cord connected to the...
US-4,139,073 Divider gear case support for articulated vehicles
The transfer gear case for a power dividing transmission is hingedly connected to one frame section of an articulated tractor vehicle and supported for angular...
US-4,138,832 Hole filling machine
A hole filling machine comprising a driven vehicle having a frame with a substantially horizontal rotatable blade assembly adjustably suspended therefrom. The...
US-4,137,069 Sulfide herbicide antidote compositions and method of use
Herbicidal compositions comprising an active herbicidal compound and an antidote therefor and the methods of use of the herbicide compositions are described...
US-4,132,358 Sprinkler nozzle
A pop-up nozzle for an underground sprinkler system. The nozzle includes a spray head fastened to the top of a hollow stem which is slidably mounted within a...
US-4,131,309 Vehicle wind deflector
In a cab-over-engine vehicle, a wind deflector extending from the front thereof and a bumper assembly located below the wind deflector extending beyond the...
US-4,130,578 Immunosuppressive dithiocarbanilates
The present invention provides certain novel .omega.-(alkoxycarbonyl)alkyl esters of dithiocarbanilic acid and certain aryl-substituted acids related thereto....
US-4,130,133 Bypass valving fluid control arrangement
A bypass valving fluid control arrangement for a fluid system including a fluid treatment device which permits the removal of the fluid treatment device from the...
US-4,129,393 Scaffold lumber clamps
A pair of scaffold lumber clamps are provided. A first of the clamps includes a pair of elongated generally parallel strap members with adjustable clamp...
US-4,126,821 Stepping motor control circuit
Disclosed is a stepping motor control utilizing a microprocessor. The control is suitable for driving one or more stepping motors one at a time or in unison. In...
US-4,124,372 Herbicidal antidote compositions with substituted oxazolidines and thiazolidines
Herbicidal compositions comprising an active herbicidal compound and antidote therefor and the methods of use; the antidote compound corresponds to substituted...
US-4,122,767 Method of producing pressed hay pellets
Hay and similar crop materials can be efficiently compacted and formed into pellets or cubes through a closely coordinated sequence of operations in which the...
US-4,119,914 Double balanced mixer using single ferrite core
Disclosed is a double balanced mixer using a novel single ferrite core construction. The core includes two apertures and a transformer is wound through each...
US-4,117,783 Modular storage unit
The present invention pertains to storage units for use in the home, factory, office or the like, and, more particularly, to such storage units constructed of...
US-4,116,770 Waxy barley starch with unique self-liquefying properties
Barley starch granules are prepared which have been found to have native amylase bound sufficiently tenaciously onto the starch granule, such that it is not...
US-4,116,435 Automatic cue ball separating device for billiard tables
An automatic cue ball separating device is described for billiard tables to separate a metallic containing cue ball from nonmetallic object balls. The cue ball...
US-4,114,644 Recycling drain pan
A drain pan forming an enclosure having a top and bottom wall and a front wall and terminates in a drain opening into the enclosure at the juncture of the front...
US-4,114,408 Gate lock and latch
A lock comprising a bolt slidable into an operative position and from there rotatable into a locked position in which pins projecting from the bolt prevent it...
US-4,114,234 Lockable attachment means for luggage
A length of chain of open link construction is insertable through luggage handles to enable carrying of both pieces of luggage with but one hand. A hook member,...
US-4,112,970 Oscillation damping pressure relief valve
A primary pilot relief valve senses a predetermined tank pressure of a fluid pressure source and connects that source to one sealed chamber on one side of an...
US-4,112,533 Interior-exterior truck body wash
A more or less conventional back and forth shiftable spray and rotary brush assembly is provided for movement back and forth along the external surfaces of a...
US-4,106,773 Crossword puzzle game
A competitive game played with a crossword puzzle, at least two writing instruments capable of filling in the crossword puzzle in different colors, and a timer....
US-4,106,561 Well casing perforator
A well casing perforator adapted to be used with pneumatically powered rotary drilling equipment. It includes an upright elongated body which is inserted within...
US-4,105,077 Universally supported implement frame section
A ground working implement is provided defining an intended forward path of movement and including first and second sections arranged in side-by-side relation...
US-4,104,433 Flame retardant, non-dripping coating composition comprising crosslinkable copolymers of dihydric phenols with...
Coating compositions for polymeric substrates which reduce or eliminate dripping of the substrates by forming a cohesive, intumescent, adherent char during...
US-4,103,784 Single line, traction driven running skyline system
A continuous, single line, traction driven cable transportation system, intended for logging applications but not limited thereto. The system is open, such that...
US-4,103,712 Positive isolation disconnect
A disconnect composed basically of two halves each consisting of a poppet valve operable to isolate fluid with essentially zero fluid loss. The two halves are...
US-4,103,495 Flow control device for an irrigation ditch
A device for controlling the flow of water between an irrigation ditch and an adjacent field. A conduit having a first end opening into the irrigation ditch and...
US-4,102,655 Bubble trap
A bubble trap comprising a closed container for holding liquid, an inlet extending through the container bottom upward within the container to an inlet opening...
US-4,102,609 Valve control system for air powered vacuum pump
A source of fluid, regulated as to pressure intensity before entry into a control valve assembly, drives a fluid biased piston motor. A mechanically actuated and...
US-4,102,528 Combined log skidder and loader
A wheel tractor that includes facilities for skidding logs and a loading assembly by which the logs may be loaded onto a truck. The wheel tractor includes an...
US-4,102,502 Concentration of plate-shaped minerals
Minerals, which when mined are recovered in plate-shaped form, such as vermiculite, are efficiently concentrated in a process wherein the mined ore is passed...
US-4,101,152 Fisherman's knot tying jig
A jig is disclosed that may be hand held and utilized to assist fishermen in tying a particular variety of knots that are utilized to fasten fishing line to a...
US-4,100,950 End dogging feeding device
A device for continuously feeding logs into a machine center to cut or chip pieces from the sides thereof is disclosed. The device includes opposed upper and...
US-4,100,687 Vertical auger snow removal device
A vertical augered snow removal device in which the augers rotate, in unison, toward the fan opening, at the center, back of the augers; which lift and throw the...
US-4,099,578 Hinged bulldozer blade
A hinged bulldozer blade with a central blade body and hinged outward ends coupled with a mechanism for selectively pivoting the hinged ends such that the blade...
US-4,099,358 Interlocking panel sections
This disclosure is directed to an interlocking construction panel, which when interlocked with an identical panel, will present a smooth flat surface on one...
US-4,097,085 Tractor
An improved tractor having a front section pivotally coupled to a rear section wherein the front section has a radiator, front wheels, and a tiltable cab....
US-4,096,978 Backpack
Disclosed is a backpack comprised of a flexible bag for containing a load to be carried and adjustable-length connection means extending across the interior of...
US-4,096,827 Self-cleaning cat waste disposal device
A self-cleaning cat waste disposal device having a portable suitcase style container structure with two substantially identical compartments pivotally connected...
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